import { constantRoutes, asyncRoutes } from '@/router'
import Layout from '@/layout/Index.vue'
import ParentView from '@/components/ParentView'
import sysApi from '@/apis/system'
import loginAPi from '@/apis/login'
const permission = {
    state: {
        routes: [],
        addRoutes: [],
        sidebarRouters: []
    },
    mutations: {
        setRoutes: (state, routes) => {
            state.addRoutes = routes
            state.routes = constantRoutes.concat(routes)
        },
        setDefaultRoutes: (state, routes) => {
            state.defaultRoutes = constantRoutes.concat(routes)
        },
        setTopbarRoutes: (state, routes) => {
            state.topbarRouters = routes
        },
        setSidebarRoutes: (state, routes) => {
            state.sidebarRouters = routes
        }
    },
    actions: {
        // 生成路由
        GenerateRoutes({ commit }) {
            return new Promise(resolve => {
                // 向后端请求路由数据
                //过滤需要隐藏的菜单
                let arr = constantRoutes.filter(item => {
                    return !item.meta.hidden
                })
                sysApi.menu.userListMenus().then(res => {
                    if (res) {
                        const sdata = JSON.parse(JSON.stringify(res.data.data))
                        const rdata = JSON.parse(JSON.stringify(res.data.data))
                        const sidebarRoutes = filterAsyncRouter(sdata)
                        const rewriteRoutes = filterAsyncRouter(rdata, false, true)
                        rewriteRoutes.push({ path: '*', redirect: '/404', hidden: true })
                        //console.log(sidebarRoutes, rewriteRoutes);
                        commit('setRoutes', rewriteRoutes)
                        commit('setSidebarRoutes', arr.concat(asyncRoutes, sidebarRoutes))
                        commit('setDefaultRoutes', sidebarRoutes)
                        commit('setTopbarRoutes', sidebarRoutes)
                        resolve(constantRoutes.concat(asyncRoutes, sidebarRoutes))
                    }
                })
                loginAPi.getPermissionInfo().then(res => {
                    if (res) {
                        commit('setUserPermission', res.data.data.permissions)
                        commit('setUser', res.data.data.user)
                    }
                })
                // sysApi.dict.data.listAllSimple().then(res => {
                //   if (res) {
                //     commit("setDictData", res.data.data);
                //   }
                // })
            })
        }
    }
}

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
    return asyncRouterMap.filter(route => {
        // 将 ruoyi 后端原有耦合前端的逻辑，迁移到此处
        // 处理 meta 属性
        route.meta = {
            title: route.name,
            icon: route.icon,
            noCache: !route.keepAlive
        }
        route.hidden = !route.visible
        // 处理 component 属性
        if (route.children != null && route.children && route.children.length) {
            // 父节点
            if (route.parentId === 0) {
                route.component = Layout
            } else {
                route.component = ParentView
            }
        } else {
            // 根节点
            route.component = loadView(route.component)
        }

        // filterChildren
        if (type && route.children) {
            route.children = filterChildren(route.children)
        }
        if (route.children != null && route.children && route.children.length) {
            route.children = filterAsyncRouter(route.children, route, type)
        } else {
            delete route['children']
        }
        return true
    })
}

function filterChildren(childrenMap, lastRouter = false) {
    var children = []
    childrenMap.forEach((el, index) => {
        if (el.children && el.children.length) {
            if (el.component === 'ParentView' && !lastRouter) {
                el.children.forEach(c => {
                    console.log(c)
                    c.path = el.path + '/' + c.path
                    if (c.children && c.children.length) {
                        children = children.concat(filterChildren(c.children, c))
                        return
                    }
                    children.push(c)
                })
                return
            }
        }
        if (lastRouter) {
            el.path = lastRouter.path + '/' + el.path
        }
        children = children.concat(el)
    })
    return children
}

export const loadView = view => {
    // 路由懒加载
    //return (resolve) => require([`@/views/${view}`], resolve)
    return () => import(`@/views${view}/Index.vue`)
}

export default permission
